package org.goldfish.mapreduce.orders;

import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.mapreduce.Reducer;

import java.io.IOException;


public class OrderReducer
        extends Reducer<
        OrderKey, IntWritable,
        OrderKey, IntWritable
        > {
    public void reduce(
            OrderKey key,
            Iterable<IntWritable> values,
            Context context)
            throws IOException, InterruptedException {
        int sum = 0;
        for (IntWritable val : values) {
            sum += val.get();
        }
        context.write(key, new IntWritable(sum));
    }


}
